Railway-rail.



J. R. CALDER. RAILWAY RAIL. APPLICATION FILED FEB. 1a, 1913.

1,076,016. Patented Oct. 21, 1913.

R97 2 5 Mr'IILLSS/S. I 11 UQ'IIIJE KM fig /X/l4/, a? 4 Q/MM 4 4 JAMES R.CALDER, OF HAMILTON, ONTARIO, CANADA.

RAILWAY-RAIL.

Application filed February 18, 1913.

To all whom it may concern Be it known that 1, JAMES R. CALDER, of thecity of Hamilton, in the Province of Ontario, Canada, have inventedcertain new and useful Improvements in Railway-Rails.

This invention relates to rails particularly adapted for street railwayuse, and my object is to devise a rail in which the usualrail-connecting devices are dispensed with and in which the rail head isdetachable so that when worn it can be replaced without tearing up theroad bed.

I attain my object by forming the rail in two parts namely; a baseportion having a socket formed longitudinally therein the inner face ofone side wall of the socket being convexly curved and a head portionhaving a stem of less widta than the socket fitted therein and havingone side concavely curved substantially concentric with the curve of theaforesaid wall of the socket. A curved filling piece is adapted to befitted into the space between the said curved surfaces securely lockingthe two parts together. The bottom of the stem is normally above thebottom of the socket so that the head may settle into place andautomatically take up wear.

Figure 1 is a side elevation of part of a track formed with my improvedrail. Fig. 2 is a side elevation of the filling piece. Fig. 3 is a crosssection of the same and Fig. 4 is an enlarged cross section of the rail.

In the drawings like numerals of reference indicate corresponding partsin the different figures.

The base portion 1 has the upper portion of its web enlarged and asocket 2 is formed therein extending lengthwise of the rail.

he inner face 3 of one wall of the socket is conveXly curved and theopposite face 4 is preferably straight and inclined somewhat from thebottom inwardly.

The head 5 has a stem 6 formed thereon of less width than the socket,one side of which fits the straight side of the socket while the otheris curved substantially concentric with the curve of the curved side ofthe socket.

After the stem has been placed in the socket a curved filling piece 7 isfitted in between the curved surfaces. When this is Specification ofLetters Patent.

Patented @ct. 21,1913.

Serial No. 749,220.

U in place the head is securely locked to the base against displacementeither upwardly or downwardly.

The parts are so proportioned that the bottom of the stem is normallyabove the bottom of the socket so that the stem may settle into placetill all the parts are tight. Thus all looseness is avoided and any wearis automatically taken up.

The parts of the rails are so laid that they break oint with one anotherand thus all special connections may be dispensed with.

To enable the filling piece to be pried out I provide holes 8 extendingthrough the side of the socket below the filling piece. lifting leverwith a suitably shaped end may be inserted through these holes andengaged with the under side of the filling piece.

As the base of the rail need never be disturbed when once it is laid andas the top is easily removed without any tearing up of the road bed itis evident that the process of rail renewal is much simplified andcheapened, particularly as the renewal of heads is much cheaper thanrenewing a complete rail.

It will also be found that the contacts are so extensive with such arail that rail end welding and special bonding are rendered unnecessary.

\Vhat I claim as my invention is 2- 1. A two-part rail comprising a baseportion having a socket formed longitudinally therein the inner face ofone side wall of the socket being conveXly curved; a head portion havinga stem of less width than the socket and fitted therein and having oneside concavely curved substantially concentrio with the curve of theaforesaid wall of the socket; and a curved filling piece adapted to befitted into the space between the said curved surfaces, the bottom ofthe said stem normally being above the bottom of the socket.

2. A two-part rail comprising a base portion having a socket formedlongitudinally therein the inner face of one side wall of the socketbeing conveXly curved; a head portion having a stem of less width thanthe socket and fitted therein and having one side concavely curvedsubstantially conthe socket for the introduction of a tool to centricWith the curve of the aforesaid Wall pry out the filling piece. 10 ofthe socket; and a curved filling piece Dated at Hamilton, Canada, thisfouradapted to be fitted into the space between teenth day of February,1913.

the said curved surfaces, the bottom of the JAMES R. CALDER. said stemnormally being above the bottom Signed in the presence of of the socket,and a hole being formed J. GEO. VVEGENAST,

through the side of the base portion into RICHARD BUTLER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

